Play Nocturne Op. 9 No. 2 on Gesture Synth

Map the Eight C-Minor Targets

Section one is Cm–G7–Cm/E-flat–A-flat. Begin on degree I with the left wrist in the minor world and one right-hand finger. G7 moves to degree V, rotates the wrist to major and opens four right-hand fingers. Cm/E-flat returns to degree I and minor while two right-hand fingers request first inversion. A-flat moves to degree VI, returns to the major world and uses one finger.

Section two is Fm7–G7–low Cm–Cm. F minor seventh uses degree IV, a minor wrist and three right-hand fingers. G7 returns to degree V, major wrist and four fingers. The low C-minor target uses degree I, minor wrist, one finger and an extended right thumb. Retract the thumb while keeping the other properties steady to complete the final C minor target.

Memorise degree groups before full poses: I–V–I–VI, then IV–V–I–I. Next rehearse worlds as minor–major–minor–major and minor–major–minor–minor. Finally add right-hand counts one–four–two–one and three–four–one–one. This layered method prevents a slow musical character from becoming vague hand movement.

• Target 2: degree V, major wrist, four fingers for G7.
• Target 3: degree I, minor wrist, two fingers for Cm/E-flat.
• Target 5: degree IV, minor wrist, three fingers for Fm7.
• Target 7: extend the right thumb only after low Cm is otherwise stable.

Use Slow Holds Without Drifting Between Properties

At 64 BPM there is enough time to over-correct. Keep both hands inside the guide area and make the smallest change that fixes the displayed property. When the degree is correct but the world is wrong, rotate the left wrist without changing its finger count. When the chord family is correct but the voicing is wrong, adjust only the right-hand count.

The recogniser requires about 350 milliseconds of a complete pose. During the following 650-millisecond confirmation pause, relax tension but keep your hands visible. Use the pause to prepare the next degree rather than sweeping sideways. Side-to-side motion does not select harmony and can make a clean pose leave the camera frame.

Practise the first section until Cm/E-flat no longer collapses to root-position Cm. Then practise the second section until the right thumb creates a single low target rather than remaining extended for the ending. Skip is a recovery control, not an accuracy signal; a no-Skip run is the useful final check.

Choose stable webcam hand positions → · Review the complete control map →

Prepare the Section Break and Minor Cadence

A-flat ends section one in the major world. The section-complete screen pauses progression, so prepare Fm7 before selecting Next section: form degree IV, rotate to minor and show three right-hand fingers. That preparation avoids an accidental F major or plain F minor at the opening of section two. The optional song click stops at the break and must be started again if wanted.

The closing Fm7–G7–Cm pattern changes every major control property. Move IV to V and minor to major while changing three fingers to four. For G7 to Cm, prepare degree I, rotate to minor and close the right hand to one finger. Add the thumb only for the penultimate low Cm, then retract it for the final target.

This cadence is useful precisely because the page does not attempt to imitate Chopin's ornamented piano writing. It isolates a small, repeatable control problem: world contrast, seventh quality, low-register selection and a stable return. The generated browser chords are practice feedback, not an evaluation of musical expression.

Practise seventh-chord finger counts → · Practise chord inversions →

Fix Common Misreads and Add the 64 BPM Reference

If G7 reads as G, separate four right-hand fingertips. If Cm/E-flat reads as Cm, keep degree I and the minor wrist while showing exactly two right-hand fingers. If A-flat remains minor, clarify the major wrist. If Fm7 becomes F minor, preserve degree IV and the minor world while showing three right-hand fingers.

Complete both sections silently before enabling the built-in metronome. The click begins after the first detected chord and remains fixed at 64 BPM. It is only a preparation reference: it does not encode the nocturne's rubato, approve a target, advance the lesson or continue through the section break. Use the separate metronome page if you need another pace.

Finish with three passes: degree and world only, right-hand counts and thumb only, then all eight targets without Skip. Success means the stored GestureSynth targets were recognised in order. It does not mean that this simplified C-minor study reproduced or taught the original E-flat-major score.

Open the adjustable metronome → · Diagnose tracking or audio lag → · Browse all guided exercises →